CA1073602A - Disposable diaper with cover means - Google Patents
Disposable diaper with cover meansInfo
- Publication number
- CA1073602A CA1073602A CA241,320A CA241320A CA1073602A CA 1073602 A CA1073602 A CA 1073602A CA 241320 A CA241320 A CA 241320A CA 1073602 A CA1073602 A CA 1073602A
- Authority
- CA
- Canada
- Prior art keywords
- sheet
- pad assembly
- diaper
- pair
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 230000002745 absorbent Effects 0.000 claims abstract description 10
- 239000002250 absorbent Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 230000000717 retained effect Effects 0.000 claims description 7
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/551—Packaging before or after use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F2013/8402—Accessories, not otherwise provided for, for absorbent pads including disposal means
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A disposable diaper comprises an absorbent pad assembly having a fluid impervious backing sheet at least partially defining a back surface of the pad assembly, a front surface, a pair of side edges, a pair of end edges connecting the side edges, and a pair of waistline portions. The diaper has a disposal cover adjacent an edge of the pad assembly, the cover comprising a sheet of flexible material being transversely folded to a configuration of reduced dimensions. The sheet has a sufficient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper. The diaper has means for securing side regions of the folded sheet together and retaining the secured sheet to a surface of the pad assembly to provide access to a sufficient area of the sheet for covering the diaper. The dispos-al cover is an integral fluid impervious extension of the backing sheet.
A disposable diaper comprises an absorbent pad assembly having a fluid impervious backing sheet at least partially defining a back surface of the pad assembly, a front surface, a pair of side edges, a pair of end edges connecting the side edges, and a pair of waistline portions. The diaper has a disposal cover adjacent an edge of the pad assembly, the cover comprising a sheet of flexible material being transversely folded to a configuration of reduced dimensions. The sheet has a sufficient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper. The diaper has means for securing side regions of the folded sheet together and retaining the secured sheet to a surface of the pad assembly to provide access to a sufficient area of the sheet for covering the diaper. The dispos-al cover is an integral fluid impervious extension of the backing sheet.
Description
736~
BACKGROUND OF THE INVENTION
The present inven-tion relates to absorbent ar-ticles, and more particularly to disposable diapers.
During recent years diapers of the disposable type have come into widespread use. Such diapers are generally constructed having a fluid impervious backing sheet, a fluid pervious top sheet and an absorbent pad located between the -top and backing sheets. Although disposable diapers have attained a high degree ; of popularity with parents since they are discarded after a single use and need not be laundered, proper disposal of the used diapers may pose difficu]ty for paren-ts. At certain times, for example during travel in an automobile, immediate disposal of the soiled diaper may not be possible. At other times, for example at one's residence, disposal of the diapers may prove troublesome or unsan-i-tary. It has been suggested that the backing sheet could be removed from the soiled diaper, and the remainder of the diaper may be disposed o-f in a flush toilet. However, conventional top sheets have sufficient wet strength to prevent their disintegra-tion under use, and the wet strength properties may result in . 20 difficulties in sewage disposal systems, such as septic tank sys-.:~ tems, after flushing the diapers. Thus, more commonly the soiled diapers are discarded into trash containers until -they~.may be permanently di.sposed of through other re-fuse disposal sys-tems.
Although stored only temporarily in a -trash container, the unsani~
tary aspect in this manner of disposal i.s apparent. Moreover, many parents feel that handling of soiled disposable diapers is objectionable.
' 10'~
A principal feature of the present invention is the provision of a disposable diaper of simpli~ied construction which may be handled and dis-carded after use in a sanitary and convenient manner.
According to one aspect a disposable diaper of the invention com-prises an absorbent pad assembly having a fluid impervious backing sheet a~
least partially defining a back surface of the pad assembly, a front surface~
a pair of side edges, a pair of end edges connecting the side edges, and a pair of waistline portions; a disposal cover adjacent an edge of the pad assembly, said cover comprising a sheet of flexible material being accordion folded to a configuration of reduced dimensions, said sheet having a suff-icient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper; and tape means for permanently securing side regions of the folded sheet together and retaining the secured sheet to a surface of the pad assembly to provide access to a sufficient area of the sheet for covering the diaper, said folded sheet being an integral fluid imperious extension of said backing sheet.
According to another aspect of the invention, a disposable diaper comprises an absorbent pad assembly having a fluid impervious backing sheet at least partially defining a back surface of the pad assembly, a front surface, a pair of side edges, a pair of end edges connecting the side edges~
and a pair of waistline portions; a disposal cover adjacent an edge oE the pad assembly, said cover comprising a sheet of flexible material being accordion folded to a configuration of reduced dimensions, said sheet having a sufficient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper; side regions of the folded sheet being permanently secured together by heat seal-ing, the secured sheet being retained to a surface of the pad assembly by heat sealing in such manner that access to a sufficient area of the sheet for covering the diaper is provided, the folded sheet being an integral fluid impervious extension of the backing sheet.
According to a further aspect of the invention, a disposable ; diaper comprises an absorbent pad assembly having a fluid impervious backing ' ~
~ ~ 3~ ~
sheet at least partially defining a back surface of the pad assembly, a front surface, a pair of side ed~es, a pair of end edges connecting the side edges, - and a pair of waistline portions~ a disposal cover adjacent an edge of the pad assembly, said cover comprising a sheet of flexible material being accordion folded to a configuration of reduced dimensions, said sheet having a sufficient width and length to pass over remote portions of the pad assem-bly and provide a cover for the soiled pad assembly after use of the diaper, side regions of the folded sheet being permanently secured together by heat sealing, means for retaining the secured sheet to a surface of the pad assembly to provide access to a sufficient area of the sheet for covering ` the diaper, wherein side margins of the folded sheet extend past side edges ; of the pad assembly, a front surface of the side margins includes a release surface for adhesive on a pair of tape strips, and said folded sheet is an integral fluid imperious extension of said backing sheet.
; Thus, a feature of the present invention is that the user may pass ,~ the folded sheet over a remote portion of the diaper to cover soiled portions of the diaper.
Another feature of the invention is that the soiled diaper may be ~ covered in a sanitary manner without contacting the soiled surface of the i 20 diaper with the user's hands.
.
Yet another feature of the invention is that the covered diaper may be disposed of in a sanitary manner.
Still another feature is that in an embodiment of the invention tape strips, which are utilized to secure the diaper about an infant, may secure the folded sheet to a surface of the pad assembly.
In a preferred embodiment a surfacs of the folded sheet is utilized as a release surface for securement portions of the tape strips.
Further features will become more fully apparent in the following description of preferred embodiments.
In the drawings:
'' ' -2a-:. Y .; ~
3~
Figure 1 is a fragmentary sectional view of the diaper of the present invention having a cover sheet in a partially folded configuration;
Figure 2 is a fragmentary back plan view of the diaper of Figure 1 showing ~he folded cover sheet secured to the diaper;
Figure 3 is a fragmentary front plan view of the diaper of Figure 2;
Figure 4 is a fragmentary sectional view taken substantially as indicated along the line 4-4 of Figure 3;
Figure 5 is an elevational view illustrating ~he cover sheet being partially unfolded to cover the diaper after use;
Figure 6 is a~ elevational view showing the soiled diaper as covered by the cover sheet;
Figure 7 is a fragmentary sectional view showing another :
~ 736~
embodiment of the diaper of the present invention;
Fig. 8 is a fragmentary front plan view of the diaper of Fig. 7;
Flg. 9 is a f`ragmentary sectional view taken subs-tanti-ally as indicated along the line 9-9 of Fig. 8;
Fig. 10 is a back plan view o~ another embodiment of the diaper of the present invention;
Fig. 11 is a front plan view showing the diaper of Fig. 10 as folded into a box-pleat configuration;
Fig. 12 is a fragmentary sectional view taken subs-tanti-ally as indicated along the line 12~12 of Figo 10;
Fig. 13 is a fragmentary back plan view of another embodiment of the diaper of the present invention;
Fig. 14 is a fragmentary front plan view of -the diaper of Fig. 13; and Fig. 15 is a fragmentary sectional view taken substanti-ally as indicated along the line 15-15 of Fig. 13.
DESCRIPrION OF THE PREFERRED EMBODIMENTS
Referring now to Figs. 1-4, there is shown a disposable diaper generally designated 20 having an absorben-t pad assembly 22. The pad assembly 22 has a fluid impervious baclcing sheet 24 defining at least a portion of the back surface 26 of the pad assembly, a fluid pervious cover or top sheet 28 defining at least a portion of a front surface 30 of the pad assembly, an absorbent pad 32 located intermediate the backing and cover sheets 24 and ;; 23, respectively, a pair of side edges 34a and b, and a pair of end edges 36a and b connecting the side edges 34a and b. The ' -~7361~2 diaper or pad assembly has a pair of waistline portions 38a and 38b, and a crotch portion 40 intermediate the waistline portions 38a and b.
As shown in Fig. l, the diaper 20 has a disposal cover generally designated 42 in the waistline portion 38a of the pad assembly. The cover 42 is preferably made from a sheet ~4 o~
flexible fluid impervious material, such as polyethylene. The sheet 44 may be transversely fan or accordion folded along a plurality of lateral fold lines 46 to modify the length of the sheet 44 to a reduced con~iguration and positlon the outer layer 48 of the folded sheet 44 somewhat proximal the back surface 26 of the pad assembly. ~-As shown in Figs. 2 and 3, the laterally folded sheet 44 extends substantially the width of the pad assembly 22, such that side edges SOa and 50b of the sheet 44 are located adjacent the side edges 34a and b of the pad assembly. As illustrated in Figs. 2-4, side regions 52a and 52b may be secured together and retained to the bac~s surface 26 of the pad assembly by a pair of tape strips 54a and 54b. The tape strips 54a and b have first portions 56a and 56b secured to an outer surface 58 o~ the side regions 52a and b, and second securement portions 60a and 60b extending past the side edges 50a and b of the sheet 44. The securement portions 60a and b may be secured to an outer surface of the backing sheet 24, and may extend past the side edges 34a and b of the pad assembly, such that adhesive on outer ends of the securement portions are releasably attached to a pair o:~
release sheets 62a and 62b on the front surface of the pad assem-bly. As shown in Figs. 3 and 4, the securement portions 60a and - . : ', . . .
361~2 b of the tape strips 54a and b may have turned over ends 64a and 6~b to facilitate removal oE the securement portions ~rom the release shee-ts 62a and b. Thus, the tape strips 54a and b may be utilized to secure the side regions 52a and b of the folded sheet 44 together and retain the folded sheet 44 against the back sur-face 26 of the pad assembly. However, if desired, the inner layer 66 of the folded sheet 44 may be retained to the back sur-face 26 of the pad assembly 22 by suitable means 68, such as a line of adhesive 70, as shown in Figs. 1 and 2.
As -thus construc-ted, the folded sheet 44 or cover 42 is secured to the back surface of the pad assembly in a reduced configuration. During placement of the diaper, the securemen-t portions 60a and b of the tape strips 54a and b may be removed from the release shee-ts 62a and b for securement of the diaper about the infant. After use of the diaper, the soiled diaper is removed from the infant, and the diaper may be covered for dis-posal in a manner described as follows. As shown in Fig. 5, the user, such as the parent, may place one hand in the laterally folded sheet 44 while drawing the other waistline portion 38b toward the folded sheet 44. The user then unfolds the sheet 44, and passes the sheet over remote regions of the diaper until the sheet encompasses and covers a sufficient portion of the diaper to close and cover the soiled front surface of the pad assembly, as shown in Fig. 6. Thus, -the covered pad assembly may then be discarded in a convenient and sanitary fashion with all the soiled portions of the diaper being covered, and without contact of the user's hands against the soiled surface of the pad assembly.
: -6-3~V2 Although the diaper has been described as havin~ the folded sheet 4~ located in the waistline region 3~a of the pad assembly, it will be understood that the sheet may be located at other areas of the diaper such as the other waistline region 38b.
Additionally, it is contemplated that the sheet may be folded longitudinally adjacent a side edge of the pad assembly, such that the longitudinally folded sheet is brought around the opposing side edge of the pad assembly for disposal of the diaper, in a manner similar to that described above.
A diaper constructed in accordance with one aspect of the present invention is illustrated in Figures 7-9, in which like reference numerals designate like parts. As shown in Figure 7/ in the diaper of the invention, the folded sheet 44 comprises an extension of the backing sheet 24, with the inner layer 66 of the sheet 44 being joined to the backing sheet 24 along a fold line 72 adjacent the end edge 36a of the pad assembly. Thus, the folded sheet 44 is retained to the back-ing sheet 24 by the juncture of the sheet 44 and the backing ;~ sheet, with the folded sheet underlying the back surface 26 of the backing sheet 24.
As illustrated in Figures 8 and 9, the backing sheet 24 may have lateral side margins 74a and 74b extending past the side edges 34a and b of the pad assembly 22 and being secured to the front surface 30 of the pad assembly. Thus, the side ~'! regions 52a and b of the folded sheet 44 extend around the side edges 34a and b of the pad assembly over the front surface 30 of the pad assembly, and may be secured in place by suitable means, such as by heat sealing. If the side regions 52a and b of .;,-.~ .
.
-~LO'Y3~i~2 the folded sheet 44 are heat sealed together, the outer surfaces 76a and 76b provide a suita~ly smooth surface for release of the securement portions 60a and b of the tape strips 54a and b.
Thus, the securement portions of the tape strips may be releas-ably attached to the outer treated surfaces 76a and b of the side regions 52a and b, eliminating the necessity for separate release sheets. The securement portions 60a and b of the tape strips 54a and b are removed from the surfaces 76a and b for securement of the diaper about the infant during placement~ as previously de-scribed, and the folded sheet 44 is utilized to cover the soileddiaper in a manner similar to that described in connection with the diaper of Figures 1-6.
Another diaper is illustrated in Figures 10-12, in which like reference numerals designate like parts. In this diaper the side regions 52a and b of the folded shee-t 44 extend past the side edges 34a and b of the pad assembly 22. The side regions 52a and b of the sheet 44 may be secured together by suitable means, such as by heat sealing of the regions. The first portions 56a and b of the tape strips 54a and b may be secured to back surfaces 26a' and b' of the regions 52a and b, and the securement portions 60a and b may extend around the side edges 50a and b of the sheet 44, with the securement portions ; being releasably attached to the outer front surfaces 76a and b of the regions 52a and b. Thus, the securement portions 60a and b are releasably attached to the heat treated surface 76a and b of the side regions 52a and b. In the drawings, the inner layer 66 of the folded sheet 44 is retained to the back surface 26 of the pad assembly by suitable means 68, such as a 6~
line of adhesive 70. As shown in Figures 10 and 11, the pad assembly ~2 may be folded along a plurality of longitudinally extending old lines 78a, 7~b, 78c, and 78d to define a box-pleat configuration, with the pleat having a longitudinally e~tending central panel C, a pair of first panels B and D extending from and overlying the front surface of the central pa~el C, and ~
pair of outermost panels A and E extending from and overlying the first panels B and D.
During use, the securement portions 6Oa and b of the tape strips 54a and b are removed from the outer surfaces 76a and b of the side regions 52a and b to secure the diaper about the infant, as previously described. The laterally folded sheet 44 ; or cover 42 is utilized in a manner described above to cover the soiled diaper for disposal.
Another embodiment of the diaper of the present inven-tion is illustrated in Figures 13-15, in which like reference numerals designate like parts. In this embodiment, as shown in Figure 15, the laterally folded sheet comprises an e~tenslon of the backing sheet 24. The sheet 44 may have a plurality of lat-~ 20 eral pleats 80, as shown, and a longitudinal end section 82 which ,; i5 foldea over and secured to the front surface 30 o the pad assembly 22~ As shown in Figure 14, the lateral side margins 74a and b of the backing sheet 24 and the side regions 52a and b of the folded sheet 44 or cover 42 may be folded around the side edges 34a and b of the pad assembly and secured to the front surface of the pad assembly by suitable means, such as adhesive or by heat sealing. As shown in Figures 13 and 14, the first portions 56a and b of the tape strips 54a and b may be secured to the outer surface of the disposal cover 42, with the securement portions 60a and b of : _ 9 _.
- ~: .
.. : . , . , :
.. . . . . .
~3i736~2 i the strips ex-tending past the side edges 34a and b o~ the pad assembly. As shown in Fig. 14, a pair of release sheets 62a' and 62b' releasably cover adhesive on the securement portions 60a and b of -the strips 54a and b. The release sheets 62a' and b' are removed from the securement por-tions of the tape strips during placement of the diaper on an infant 9 and the securement portions o~ the tape strips are utilized to secure the diaper about the infant. Af-ter use of the diaper, the diaper is removed from the infant, and the pleated sheet 44 is unfolded sufficiently to pass the sheet over remote regions of the diaper, and cover the soiled diaper in a manner similar to that described in connection with the diape~ of Figs. 1-12.
Thus, there has been described a diaper having a dis-posal cover which may utilized to cover the soiled diaper after use. The diaper may be covered in a sanitary manner ~ithou-t con-tact of the user's hands against a soiled surface of the diaper, and the covered d:Laper may be subsequently discarded in a sani-tary manner.
The foregoing detailed description is given for clear-ness of understanding only, and no unnecessary limitations shouldbe understood therefrom, as modifications will be obvious to those s~illed in the art.
.~
"
BACKGROUND OF THE INVENTION
The present inven-tion relates to absorbent ar-ticles, and more particularly to disposable diapers.
During recent years diapers of the disposable type have come into widespread use. Such diapers are generally constructed having a fluid impervious backing sheet, a fluid pervious top sheet and an absorbent pad located between the -top and backing sheets. Although disposable diapers have attained a high degree ; of popularity with parents since they are discarded after a single use and need not be laundered, proper disposal of the used diapers may pose difficu]ty for paren-ts. At certain times, for example during travel in an automobile, immediate disposal of the soiled diaper may not be possible. At other times, for example at one's residence, disposal of the diapers may prove troublesome or unsan-i-tary. It has been suggested that the backing sheet could be removed from the soiled diaper, and the remainder of the diaper may be disposed o-f in a flush toilet. However, conventional top sheets have sufficient wet strength to prevent their disintegra-tion under use, and the wet strength properties may result in . 20 difficulties in sewage disposal systems, such as septic tank sys-.:~ tems, after flushing the diapers. Thus, more commonly the soiled diapers are discarded into trash containers until -they~.may be permanently di.sposed of through other re-fuse disposal sys-tems.
Although stored only temporarily in a -trash container, the unsani~
tary aspect in this manner of disposal i.s apparent. Moreover, many parents feel that handling of soiled disposable diapers is objectionable.
' 10'~
A principal feature of the present invention is the provision of a disposable diaper of simpli~ied construction which may be handled and dis-carded after use in a sanitary and convenient manner.
According to one aspect a disposable diaper of the invention com-prises an absorbent pad assembly having a fluid impervious backing sheet a~
least partially defining a back surface of the pad assembly, a front surface~
a pair of side edges, a pair of end edges connecting the side edges, and a pair of waistline portions; a disposal cover adjacent an edge of the pad assembly, said cover comprising a sheet of flexible material being accordion folded to a configuration of reduced dimensions, said sheet having a suff-icient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper; and tape means for permanently securing side regions of the folded sheet together and retaining the secured sheet to a surface of the pad assembly to provide access to a sufficient area of the sheet for covering the diaper, said folded sheet being an integral fluid imperious extension of said backing sheet.
According to another aspect of the invention, a disposable diaper comprises an absorbent pad assembly having a fluid impervious backing sheet at least partially defining a back surface of the pad assembly, a front surface, a pair of side edges, a pair of end edges connecting the side edges~
and a pair of waistline portions; a disposal cover adjacent an edge oE the pad assembly, said cover comprising a sheet of flexible material being accordion folded to a configuration of reduced dimensions, said sheet having a sufficient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper; side regions of the folded sheet being permanently secured together by heat seal-ing, the secured sheet being retained to a surface of the pad assembly by heat sealing in such manner that access to a sufficient area of the sheet for covering the diaper is provided, the folded sheet being an integral fluid impervious extension of the backing sheet.
According to a further aspect of the invention, a disposable ; diaper comprises an absorbent pad assembly having a fluid impervious backing ' ~
~ ~ 3~ ~
sheet at least partially defining a back surface of the pad assembly, a front surface, a pair of side ed~es, a pair of end edges connecting the side edges, - and a pair of waistline portions~ a disposal cover adjacent an edge of the pad assembly, said cover comprising a sheet of flexible material being accordion folded to a configuration of reduced dimensions, said sheet having a sufficient width and length to pass over remote portions of the pad assem-bly and provide a cover for the soiled pad assembly after use of the diaper, side regions of the folded sheet being permanently secured together by heat sealing, means for retaining the secured sheet to a surface of the pad assembly to provide access to a sufficient area of the sheet for covering ` the diaper, wherein side margins of the folded sheet extend past side edges ; of the pad assembly, a front surface of the side margins includes a release surface for adhesive on a pair of tape strips, and said folded sheet is an integral fluid imperious extension of said backing sheet.
; Thus, a feature of the present invention is that the user may pass ,~ the folded sheet over a remote portion of the diaper to cover soiled portions of the diaper.
Another feature of the invention is that the soiled diaper may be ~ covered in a sanitary manner without contacting the soiled surface of the i 20 diaper with the user's hands.
.
Yet another feature of the invention is that the covered diaper may be disposed of in a sanitary manner.
Still another feature is that in an embodiment of the invention tape strips, which are utilized to secure the diaper about an infant, may secure the folded sheet to a surface of the pad assembly.
In a preferred embodiment a surfacs of the folded sheet is utilized as a release surface for securement portions of the tape strips.
Further features will become more fully apparent in the following description of preferred embodiments.
In the drawings:
'' ' -2a-:. Y .; ~
3~
Figure 1 is a fragmentary sectional view of the diaper of the present invention having a cover sheet in a partially folded configuration;
Figure 2 is a fragmentary back plan view of the diaper of Figure 1 showing ~he folded cover sheet secured to the diaper;
Figure 3 is a fragmentary front plan view of the diaper of Figure 2;
Figure 4 is a fragmentary sectional view taken substantially as indicated along the line 4-4 of Figure 3;
Figure 5 is an elevational view illustrating ~he cover sheet being partially unfolded to cover the diaper after use;
Figure 6 is a~ elevational view showing the soiled diaper as covered by the cover sheet;
Figure 7 is a fragmentary sectional view showing another :
~ 736~
embodiment of the diaper of the present invention;
Fig. 8 is a fragmentary front plan view of the diaper of Fig. 7;
Flg. 9 is a f`ragmentary sectional view taken subs-tanti-ally as indicated along the line 9-9 of Fig. 8;
Fig. 10 is a back plan view o~ another embodiment of the diaper of the present invention;
Fig. 11 is a front plan view showing the diaper of Fig. 10 as folded into a box-pleat configuration;
Fig. 12 is a fragmentary sectional view taken subs-tanti-ally as indicated along the line 12~12 of Figo 10;
Fig. 13 is a fragmentary back plan view of another embodiment of the diaper of the present invention;
Fig. 14 is a fragmentary front plan view of -the diaper of Fig. 13; and Fig. 15 is a fragmentary sectional view taken substanti-ally as indicated along the line 15-15 of Fig. 13.
DESCRIPrION OF THE PREFERRED EMBODIMENTS
Referring now to Figs. 1-4, there is shown a disposable diaper generally designated 20 having an absorben-t pad assembly 22. The pad assembly 22 has a fluid impervious baclcing sheet 24 defining at least a portion of the back surface 26 of the pad assembly, a fluid pervious cover or top sheet 28 defining at least a portion of a front surface 30 of the pad assembly, an absorbent pad 32 located intermediate the backing and cover sheets 24 and ;; 23, respectively, a pair of side edges 34a and b, and a pair of end edges 36a and b connecting the side edges 34a and b. The ' -~7361~2 diaper or pad assembly has a pair of waistline portions 38a and 38b, and a crotch portion 40 intermediate the waistline portions 38a and b.
As shown in Fig. l, the diaper 20 has a disposal cover generally designated 42 in the waistline portion 38a of the pad assembly. The cover 42 is preferably made from a sheet ~4 o~
flexible fluid impervious material, such as polyethylene. The sheet 44 may be transversely fan or accordion folded along a plurality of lateral fold lines 46 to modify the length of the sheet 44 to a reduced con~iguration and positlon the outer layer 48 of the folded sheet 44 somewhat proximal the back surface 26 of the pad assembly. ~-As shown in Figs. 2 and 3, the laterally folded sheet 44 extends substantially the width of the pad assembly 22, such that side edges SOa and 50b of the sheet 44 are located adjacent the side edges 34a and b of the pad assembly. As illustrated in Figs. 2-4, side regions 52a and 52b may be secured together and retained to the bac~s surface 26 of the pad assembly by a pair of tape strips 54a and 54b. The tape strips 54a and b have first portions 56a and 56b secured to an outer surface 58 o~ the side regions 52a and b, and second securement portions 60a and 60b extending past the side edges 50a and b of the sheet 44. The securement portions 60a and b may be secured to an outer surface of the backing sheet 24, and may extend past the side edges 34a and b of the pad assembly, such that adhesive on outer ends of the securement portions are releasably attached to a pair o:~
release sheets 62a and 62b on the front surface of the pad assem-bly. As shown in Figs. 3 and 4, the securement portions 60a and - . : ', . . .
361~2 b of the tape strips 54a and b may have turned over ends 64a and 6~b to facilitate removal oE the securement portions ~rom the release shee-ts 62a and b. Thus, the tape strips 54a and b may be utilized to secure the side regions 52a and b of the folded sheet 44 together and retain the folded sheet 44 against the back sur-face 26 of the pad assembly. However, if desired, the inner layer 66 of the folded sheet 44 may be retained to the back sur-face 26 of the pad assembly 22 by suitable means 68, such as a line of adhesive 70, as shown in Figs. 1 and 2.
As -thus construc-ted, the folded sheet 44 or cover 42 is secured to the back surface of the pad assembly in a reduced configuration. During placement of the diaper, the securemen-t portions 60a and b of the tape strips 54a and b may be removed from the release shee-ts 62a and b for securement of the diaper about the infant. After use of the diaper, the soiled diaper is removed from the infant, and the diaper may be covered for dis-posal in a manner described as follows. As shown in Fig. 5, the user, such as the parent, may place one hand in the laterally folded sheet 44 while drawing the other waistline portion 38b toward the folded sheet 44. The user then unfolds the sheet 44, and passes the sheet over remote regions of the diaper until the sheet encompasses and covers a sufficient portion of the diaper to close and cover the soiled front surface of the pad assembly, as shown in Fig. 6. Thus, -the covered pad assembly may then be discarded in a convenient and sanitary fashion with all the soiled portions of the diaper being covered, and without contact of the user's hands against the soiled surface of the pad assembly.
: -6-3~V2 Although the diaper has been described as havin~ the folded sheet 4~ located in the waistline region 3~a of the pad assembly, it will be understood that the sheet may be located at other areas of the diaper such as the other waistline region 38b.
Additionally, it is contemplated that the sheet may be folded longitudinally adjacent a side edge of the pad assembly, such that the longitudinally folded sheet is brought around the opposing side edge of the pad assembly for disposal of the diaper, in a manner similar to that described above.
A diaper constructed in accordance with one aspect of the present invention is illustrated in Figures 7-9, in which like reference numerals designate like parts. As shown in Figure 7/ in the diaper of the invention, the folded sheet 44 comprises an extension of the backing sheet 24, with the inner layer 66 of the sheet 44 being joined to the backing sheet 24 along a fold line 72 adjacent the end edge 36a of the pad assembly. Thus, the folded sheet 44 is retained to the back-ing sheet 24 by the juncture of the sheet 44 and the backing ;~ sheet, with the folded sheet underlying the back surface 26 of the backing sheet 24.
As illustrated in Figures 8 and 9, the backing sheet 24 may have lateral side margins 74a and 74b extending past the side edges 34a and b of the pad assembly 22 and being secured to the front surface 30 of the pad assembly. Thus, the side ~'! regions 52a and b of the folded sheet 44 extend around the side edges 34a and b of the pad assembly over the front surface 30 of the pad assembly, and may be secured in place by suitable means, such as by heat sealing. If the side regions 52a and b of .;,-.~ .
.
-~LO'Y3~i~2 the folded sheet 44 are heat sealed together, the outer surfaces 76a and 76b provide a suita~ly smooth surface for release of the securement portions 60a and b of the tape strips 54a and b.
Thus, the securement portions of the tape strips may be releas-ably attached to the outer treated surfaces 76a and b of the side regions 52a and b, eliminating the necessity for separate release sheets. The securement portions 60a and b of the tape strips 54a and b are removed from the surfaces 76a and b for securement of the diaper about the infant during placement~ as previously de-scribed, and the folded sheet 44 is utilized to cover the soileddiaper in a manner similar to that described in connection with the diaper of Figures 1-6.
Another diaper is illustrated in Figures 10-12, in which like reference numerals designate like parts. In this diaper the side regions 52a and b of the folded shee-t 44 extend past the side edges 34a and b of the pad assembly 22. The side regions 52a and b of the sheet 44 may be secured together by suitable means, such as by heat sealing of the regions. The first portions 56a and b of the tape strips 54a and b may be secured to back surfaces 26a' and b' of the regions 52a and b, and the securement portions 60a and b may extend around the side edges 50a and b of the sheet 44, with the securement portions ; being releasably attached to the outer front surfaces 76a and b of the regions 52a and b. Thus, the securement portions 60a and b are releasably attached to the heat treated surface 76a and b of the side regions 52a and b. In the drawings, the inner layer 66 of the folded sheet 44 is retained to the back surface 26 of the pad assembly by suitable means 68, such as a 6~
line of adhesive 70. As shown in Figures 10 and 11, the pad assembly ~2 may be folded along a plurality of longitudinally extending old lines 78a, 7~b, 78c, and 78d to define a box-pleat configuration, with the pleat having a longitudinally e~tending central panel C, a pair of first panels B and D extending from and overlying the front surface of the central pa~el C, and ~
pair of outermost panels A and E extending from and overlying the first panels B and D.
During use, the securement portions 6Oa and b of the tape strips 54a and b are removed from the outer surfaces 76a and b of the side regions 52a and b to secure the diaper about the infant, as previously described. The laterally folded sheet 44 ; or cover 42 is utilized in a manner described above to cover the soiled diaper for disposal.
Another embodiment of the diaper of the present inven-tion is illustrated in Figures 13-15, in which like reference numerals designate like parts. In this embodiment, as shown in Figure 15, the laterally folded sheet comprises an e~tenslon of the backing sheet 24. The sheet 44 may have a plurality of lat-~ 20 eral pleats 80, as shown, and a longitudinal end section 82 which ,; i5 foldea over and secured to the front surface 30 o the pad assembly 22~ As shown in Figure 14, the lateral side margins 74a and b of the backing sheet 24 and the side regions 52a and b of the folded sheet 44 or cover 42 may be folded around the side edges 34a and b of the pad assembly and secured to the front surface of the pad assembly by suitable means, such as adhesive or by heat sealing. As shown in Figures 13 and 14, the first portions 56a and b of the tape strips 54a and b may be secured to the outer surface of the disposal cover 42, with the securement portions 60a and b of : _ 9 _.
- ~: .
.. : . , . , :
.. . . . . .
~3i736~2 i the strips ex-tending past the side edges 34a and b o~ the pad assembly. As shown in Fig. 14, a pair of release sheets 62a' and 62b' releasably cover adhesive on the securement portions 60a and b of -the strips 54a and b. The release sheets 62a' and b' are removed from the securement por-tions of the tape strips during placement of the diaper on an infant 9 and the securement portions o~ the tape strips are utilized to secure the diaper about the infant. Af-ter use of the diaper, the diaper is removed from the infant, and the pleated sheet 44 is unfolded sufficiently to pass the sheet over remote regions of the diaper, and cover the soiled diaper in a manner similar to that described in connection with the diape~ of Figs. 1-12.
Thus, there has been described a diaper having a dis-posal cover which may utilized to cover the soiled diaper after use. The diaper may be covered in a sanitary manner ~ithou-t con-tact of the user's hands against a soiled surface of the diaper, and the covered d:Laper may be subsequently discarded in a sani-tary manner.
The foregoing detailed description is given for clear-ness of understanding only, and no unnecessary limitations shouldbe understood therefrom, as modifications will be obvious to those s~illed in the art.
.~
"
Claims (8)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A disposable diaper, comprising: an absorbent pad assembly having a fluid impervious backing sheet at least partially defining a back surface of the pad assembly, a front surface, a pair of side edges, a pair of end edges connecting the side edges, and a pair of waistline portions; a disposal cover adjacent an edge of the pad assembly, said cover comprising a sheet of flexible material being accordion folded to a configuration of reduced dimensions, said sheet having a sufficient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper; and tape means for permanently secur-ing side regions of the folded sheet together and retaining the secured sheet to a surface of the pad assembly to provide access to a sufficient area of the sheet for covering the diaper, said folded sheet being an integ-ral fluid impervious extension of said backing sheet.
2. The diaper of claim 1 wherein the folded sheet joins the backing sheet adjacent an edge of the pad assembly.
3. A disposable diaper, comprising: an absorbent pad assembly having a fluid impervious backing sheet at least partially defining a back surface of the pad assembly, a front surface, a pair of side edges, a pair of end edges connecting the side edges, and a pair of waistline portions, a disposal cover adjacent an edge of the pad assembly, said cover comprising a sheet of flexible material being accordion folded to a configuration of reduced dimensions, said sheet having a sufficient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper; side regions of the folded sheet being permanently secured together by heat sealing, the secured sheet being retained to a surface of the pad assembly by heat sealing in such manner that access to a sufficient area of the sheet for covering the diaper is provided, the folded sheet being an integral fluid impervious extension of the backing sheet.
4. The diaper of claim 3 wherein an end edge of the folded sheet is secured to a surface of the pad assembly opposite the surface to which the principle portion of the sheet is retained.
5. The diaper of claim 3 wherein side margins of the folded sheet extend around the opposing edges of the pad assembly and are secured to the front surface of the pad assembly.
6. The diaper of claim 5 wherein a portion of the folded sheet extends between the side edges of the pad, and the outer surface of said side margins overlying the front surface of the pad assembly includes a release surface for adhesive on a pair of tape strips.
7. A disposable diaper, comprising: an absorbent pad assembly having a fluid impervious backing sheet at least partially defining a back surface of the pad assembly, a front surface, a pair of side edges, a pair of end edges connecting the side edges, and a pair of waistline portions; a disposal cover adjacent an edge of the pad assembly, said cover comprising a sheet of flexible material being accordion folded to a configuration of reduced dimen-sions, said sheet having a sufficient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper, side regions of the folded sheet being permanently secured together by heat sealing, means for retaining the secured sheet to a surface of the pad assembly to provide access to a sufficient area of the sheet for covering the diaper, wherein side margins of the folded sheet extend past side edges of the pad assembly, a front surface of the side margins includes a release surface for adhesive on a pair of tape strips, and said folded sheet is an integral fluid impervious extension of said backing sheet.
8. The diaper of claim 7 wherein said tape strips have a first portion anchored to a back surface of said side margins, and a securement portion releasably attached to a front surface of the side margins.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US531959A US3920019A (en) | 1974-12-12 | 1974-12-12 | Disposable diaper with cover means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1073602A true CA1073602A (en) | 1980-03-18 |
Family
ID=24119792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA241,320A Expired CA1073602A (en) | 1974-12-12 | 1975-12-09 | Disposable diaper with cover means |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US3920019A (en) |
| JP (1) | JPS6127482B2 (en) |
| AU (1) | AU500994B2 (en) |
| BE (1) | BE836182A (en) |
| BR (1) | BR7507929A (en) |
| CA (1) | CA1073602A (en) |
| CH (1) | CH599764A5 (en) |
| DE (1) | DE2554504C2 (en) |
| DK (1) | DK518675A (en) |
| ES (1) | ES228073Y (en) |
| FR (1) | FR2293880A1 (en) |
| GB (1) | GB1517706A (en) |
| GR (1) | GR58299B (en) |
| IE (1) | IE41965B1 (en) |
| IT (1) | IT1052365B (en) |
| MX (1) | MX143082A (en) |
| NL (1) | NL181166C (en) |
| PH (1) | PH11628A (en) |
| SE (1) | SE432180B (en) |
| ZA (1) | ZA756747B (en) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034760A (en) * | 1976-03-18 | 1977-07-12 | Filitsa Amirsakis | Self contained disposable diaper |
| US4047529A (en) * | 1976-08-19 | 1977-09-13 | Colgate-Palmolive Company | Disposable diaper with unitary tape fastener |
| US4207895A (en) * | 1976-12-20 | 1980-06-17 | Colgate-Palmolive Company | Diaper with extensible fastener |
| US4402689A (en) * | 1981-07-20 | 1983-09-06 | Kimberly-Clark Corporation | Sanitary napkin with disposal means |
| US4493713A (en) * | 1982-07-22 | 1985-01-15 | Izzo Alexander P | Added feature to disposable diapers |
| US4551145A (en) * | 1984-05-14 | 1985-11-05 | Ryan Lizabeth L | Sanitary napkin |
| DE3440544C2 (en) * | 1984-11-07 | 1987-01-22 | Heinrich Hermann Gmbh + Co, 7000 Stuttgart | Adhesive tape closure piece for diapers |
| FR2603170B1 (en) * | 1986-08-28 | 1989-06-02 | Participation Gestion Ste Lorr | DEVICE FOR PACKAGING A CHANGE OF BABY OR ADULT AFTER USE |
| US4743240A (en) * | 1987-01-30 | 1988-05-10 | Robert Dohlke | Disposable diaper system |
| SE456311B (en) * | 1987-02-11 | 1988-09-26 | Moelnlycke Ab | FOR SINGLE USE ABSORPTION ARTICLES, SUCH AS A BLOW OR A BIND |
| US4846828A (en) * | 1987-07-31 | 1989-07-11 | Steven Mendelsohn | Sanitary napkin with self-contained disposal means |
| US4923455A (en) * | 1988-05-04 | 1990-05-08 | Personal Hygiene Research Associates | Disposable diaper with integral disposal envelope |
| US4968311A (en) * | 1989-10-02 | 1990-11-06 | Personal Hygiene Research Associates | Attached wrapper flaps for the considerate disposal of infant disposal diapers |
| US5037414A (en) * | 1990-02-06 | 1991-08-06 | Edward R. Gutierrez | Self-contained disposable diaper |
| US5141505A (en) * | 1991-07-25 | 1992-08-25 | Peter Barrett | Garment assembly with attached bag for enclosing the garment when soiled |
| MY116333A (en) | 1993-04-05 | 2004-01-31 | Kao Corp | Disposable diaper |
| DE9314521U1 (en) * | 1993-09-25 | 1995-02-02 | Sperner, Franz, 72654 Neckartenzlingen | Absorbent hygiene article |
| US5558659A (en) * | 1993-12-09 | 1996-09-24 | Kimberly-Clark Corporation | Incontinence article for males |
| US5575784A (en) * | 1995-11-02 | 1996-11-19 | The Procter & Gamble Company | Disposable training pant with improved disposal means |
| US5706950A (en) * | 1996-05-31 | 1998-01-13 | Kimberly-Clark Worldwide, Inc. | Disposable diaper changing pack |
| BR9901047A (en) | 1999-04-07 | 2000-10-17 | Johnson & Johnson Ind Com | Absorbent article |
| JP3699328B2 (en) * | 2000-04-27 | 2005-09-28 | ユニ・チャーム株式会社 | Pants-type disposable wearing articles |
| US7658731B2 (en) * | 2003-10-27 | 2010-02-09 | Sca Hygiene Products Ab | Disposal means on an absorbent diaper |
| US20060030828A1 (en) * | 2004-08-04 | 2006-02-09 | Kimberly-Clark Worldwide, Inc. | Absorbent article having a disposal member |
| US20060129119A1 (en) * | 2004-12-15 | 2006-06-15 | Kimberly-Clark Worldwide, Inc. | Absorbent undergarment with disposal feature |
| DE102005007004B4 (en) * | 2005-02-16 | 2006-11-23 | Nordenia Deutschland Gronau Gmbh | Disposable diaper |
| US20070000446A1 (en) * | 2005-07-01 | 2007-01-04 | Dunn Steven B | System for handling and disposing of pet waste |
| US8403903B2 (en) | 2005-08-29 | 2013-03-26 | Kimberly-Clark Worldwide, Inc. | Individual, expandable wrapper for a hygiene product |
| DE102009022529A1 (en) * | 2009-05-25 | 2010-12-02 | Paul Hartmann Ag | Folded incontinence article |
| US8870841B2 (en) | 2011-08-05 | 2014-10-28 | Danielle Tavolacci | Disposable diaper with attached wrapper for enclosing and sealing the diaper when soiled |
| US20160038352A1 (en) * | 2014-07-31 | 2016-02-11 | Brigitte Greene | Disposable bag diaper attachment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3369545A (en) * | 1964-09-25 | 1968-02-20 | Kendall & Co | Disposable diaper with an integral container and method for disposal |
| US3585999A (en) * | 1969-06-20 | 1971-06-22 | Kendall & Co | Diapers with waistband reinforcements serving as after-use face wraps |
| US3610244A (en) * | 1969-10-20 | 1971-10-05 | Jones Sr John L | Integral diaper waistband fasteners |
| US3731689A (en) * | 1971-02-01 | 1973-05-08 | Kendall & Co | Disposable diaper having an integral container and means for application |
| US3794038A (en) * | 1972-10-16 | 1974-02-26 | Procter & Gamble | Disposable diaper with tape fastener having a release liner which also provides a means to grip and remove the topsheet |
| US3865110A (en) * | 1973-08-14 | 1975-02-11 | Robert F Traverse | Diaper and integral eversion container |
-
1974
- 1974-12-12 US US531959A patent/US3920019A/en not_active Expired - Lifetime
-
1975
- 1975-10-27 ZA ZA756747A patent/ZA756747B/en unknown
- 1975-10-28 SE SE7512033A patent/SE432180B/en not_active IP Right Cessation
- 1975-10-30 AU AU86212/75A patent/AU500994B2/en not_active Expired
- 1975-11-06 GR GR49314A patent/GR58299B/en unknown
- 1975-11-18 DK DK518675A patent/DK518675A/en unknown
- 1975-11-21 IT IT52344/75A patent/IT1052365B/en active
- 1975-11-24 ES ES1975228073U patent/ES228073Y/en not_active Expired
- 1975-11-27 FR FR7536292A patent/FR2293880A1/en active Granted
- 1975-11-28 BR BR7507929*A patent/BR7507929A/en unknown
- 1975-11-28 GB GB49033/75A patent/GB1517706A/en not_active Expired
- 1975-12-02 JP JP50143821A patent/JPS6127482B2/ja not_active Expired
- 1975-12-02 BE BE162368A patent/BE836182A/en unknown
- 1975-12-04 DE DE2554504A patent/DE2554504C2/en not_active Expired
- 1975-12-08 CH CH1591975A patent/CH599764A5/xx not_active IP Right Cessation
- 1975-12-09 CA CA241,320A patent/CA1073602A/en not_active Expired
- 1975-12-10 PH PH17854A patent/PH11628A/en unknown
- 1975-12-11 NL NLAANVRAGE7514492,A patent/NL181166C/en not_active IP Right Cessation
- 1975-12-11 IE IE2707/75A patent/IE41965B1/en unknown
- 1975-12-12 MX MX162591A patent/MX143082A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IE41965B1 (en) | 1980-05-07 |
| DE2554504A1 (en) | 1976-06-16 |
| ES228073Y (en) | 1977-11-01 |
| AU500994B2 (en) | 1979-06-07 |
| ZA756747B (en) | 1977-06-29 |
| PH11628A (en) | 1978-04-12 |
| DE2554504C2 (en) | 1985-09-12 |
| NL7514492A (en) | 1976-06-15 |
| SE7512033L (en) | 1976-06-14 |
| NL181166C (en) | 1987-07-01 |
| NL181166B (en) | 1987-02-02 |
| IE41965L (en) | 1976-06-12 |
| SE432180B (en) | 1984-03-26 |
| DK518675A (en) | 1976-06-13 |
| US3920019A (en) | 1975-11-18 |
| MX143082A (en) | 1981-03-13 |
| CH599764A5 (en) | 1978-05-31 |
| FR2293880B1 (en) | 1980-01-11 |
| JPS5184345A (en) | 1976-07-23 |
| AU8621275A (en) | 1977-05-19 |
| GB1517706A (en) | 1978-07-12 |
| ES228073U (en) | 1977-06-01 |
| BE836182A (en) | 1976-04-01 |
| IT1052365B (en) | 1981-06-20 |
| GR58299B (en) | 1977-09-20 |
| FR2293880A1 (en) | 1976-07-09 |
| JPS6127482B2 (en) | 1986-06-25 |
| BR7507929A (en) | 1976-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |